Heads up, foodies! Celebrity chef Bobby Flay is on hand to help you answer the age old question: What’s everybody doing for lunch?

The Food Network star actually researched the “perfect” sandwich by teaming up with Hellmann’s to conduct a nation-wide taste maker’s poll. How its made is just important as what’s its made with, according to the study. It’s sandwich science! Chef Bobby shows Celebuzz how to put together one of his specialties and personal favorites as he crafts the perfect Ruben sammy!

Bobby guides you through the process with this instructional video, watch and learn!